Daraya, a town in the Damascus countryside, has become a hub for radical Islamist terrorists, most prominently al-Qaeda's Jabhat al-Nusra (Nusra Front). A large number of terrorist attacks have been launched from the Daraya terrorist hub on military and civilian facilities and residential areas.

The Syrian Army was able to eliminate almost all armed militias inside Daraya, with street battles becoming more intense as the nature of the terrain and buildings with underground shelters have rendered the fighting more challenging for the Syrian Army.

ANNA Report (starts at 2:55):
This report from ANNA (Russia) gives more details on the Daraya school liberation, with an interview conducted with Syrian Army unit leader. This school was occupied by several militias and was used as a launching point for terrorist attacks and as a center for sniper gunmen.